Mining explosion-proof cable stripping auxiliary device

Abstract

The mining explosion-proof cable stripping auxiliary device provided by the application relates to the technical field of cable stripping. The mining explosion-proof cable stripping auxiliary device comprises a guide frame and a peeling structure. The guide frame is used for supporting and conveying the cable. The peeling structure is arranged on the output side of the guide frame, and the peeling structure is provided with a first cutter, a second cutter and a third cutter. The first cutter and the second cutter are arranged at intervals along the circumference of the cable, and the first cutter and the second cutter are used for cutting the outer skin of the cable along the axial direction of the cable to form two axial cutting lines on the outer skin of the cable. The third cutter is used for moving along the circumference of the cable to cut off the outer skin of the cable between the two cutting lines. The mining explosion-proof cable stripping auxiliary device is beneficial to improving the stripping efficiency and quality of the mining explosion-proof cable.

Description

Technical Field

[0001] This utility model relates to the field of cable stripping technology, and in particular to an auxiliary device for stripping explosion-proof cables used in mining. Background Technology

[0002] Cable stripping is one of the most basic, frequent, and indispensable core operations in electrical work. Precise and non-destructive stripping is the crucial first step in ensuring excellent circuit conductivity, low contact resistance, robust mechanical connections, and long-term safe and stable operation. Improving the precision of cable stripping and achieving non-destructive stripping has always been a key focus of effort in the cable stripping process.

[0003] Mining explosion-proof cables are special cables designed for hazardous environments such as underground coal mines where explosive gases (such as methane) and dust exist. Their core design principle is to ensure that the cable itself will not become an ignition source under extreme and dangerous conditions, and to minimize the spread of explosions to the external environment in the event of internal or external faults. Because of this core design principle, mining explosion-proof cables typically have a complex, multi-layered protective structure. Their outer protective layer usually has significant hardness and thickness, and the thickness is uneven. In this case, ordinary cable strippers are unsuitable, and using a utility knife is laborious and carries the risk of cutting the internal cable insulation. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary device for stripping explosion-proof cables used in mining, which is beneficial to improving the stripping efficiency and quality of explosion-proof cables used in mining.

[0005] This utility model provides a stripping auxiliary device for explosion-proof cables used in mining, comprising: Guide frame, the guide frame being used to support and transport cables; A skinning structure is provided on the output side of the guide frame; the skinning structure is provided with a first cutter, a second cutter and a third cutter. The first cutter and the second cutter are spaced apart along the circumference of the cable; the first cutter and the second cutter are used to cut the outer sheath of the cable along the axial direction of the cable to form two axial cutting lines on the outer sheath of the cable; the third cutter is used to move along the circumference of the cable to cut off the outer sheath of the cable between the two cutting lines.

[0006] In an optional embodiment, a peeling structure is further included, wherein the peeling structure is provided with a peeling knife located between the first cutter and the second cutter for separating the core of the cable from the outer sheath of the cable.

[0007] In an optional embodiment, one side of the peeling knife has a tapered surface for contacting the outer sheath of the cable near the core; the other side of the peeling knife has an arcuate surface for contacting the core of the cable near the outer sheath.

[0008] In an optional embodiment, the peeling structure includes a fixing frame and a peeling knife, the peeling knife being connected to the fixing frame, and the fixing frame being connected to the peeling structure.

[0009] In an optional embodiment, the skin-cutting structure further includes a first adjusting member connected to the first cutter and a second adjusting member connected to the second cutter.

[0010] In an optional embodiment, the skin-cutting structure includes a ring frame, with the first cutter, the second cutter, and the third cutter respectively disposed on the ring frame.

[0011] In an optional embodiment, the annular frame is provided with a slider, and the third cutter is threadedly connected to the slider; the slider can slide relative to the annular frame in a circumferential direction.

[0012] In an optional embodiment, a first limiting frame and a second limiting frame are further included. The first limiting frame and the second limiting frame are respectively provided with a wire groove. The first limiting frame and the second limiting frame are respectively disposed on both sides of the cutting structure. The first limiting frame is located between the guide frame and the cutting structure.

[0013] In an optional embodiment, the guide frame is provided with a cable passage hole and a guide wheel. The cable passage hole is used for the cable to pass through, and the guide wheel is connected to a driving member. The guide wheel is used to drive the cable to move to the sheathing structure.

[0014] In an optional embodiment, a base is also included, on which the shaving structure and the guide are mounted.

[0015] The beneficial effects of the mining explosion-proof cable stripping auxiliary device provided in this embodiment of the utility model include: In the sheathing structure, the first and second cutters are spaced apart circumferentially along the cable, creating at least two axial cutting lines on the cable sheath. This allows for simultaneous double-sided cutting, significantly improving stripping and sheath removal efficiency. The third cutter moves circumferentially along the cable to cut the cable sheath between the two cutting lines, creating a stripping notch on the cable sheath. This facilitates subsequent complete stripping, improving the stripping efficiency and quality of mining explosion-proof cables and effectively solving the problem of high labor intensity associated with stripping the outer sheath of large-diameter mining explosion-proof cables. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the mining explosion-proof cable stripping auxiliary device provided in this embodiment of the utility model; Figure 2 A partial schematic diagram of the sheath-cutting structure of the stripping auxiliary device for mining explosion-proof cables provided in this embodiment of the utility model; Figure 3 A partial schematic diagram of the peeling structure of the stripping auxiliary device for mining explosion-proof cables provided in this embodiment of the utility model; Figure 4 This is a top view of the peeling knife of the mining explosion-proof cable stripping auxiliary device provided in this embodiment of the utility model.

[0018] Icons: 1-Base; 2-Guide frame; 201-Wire hole; 202-Guide wheel; 3-Peeling structure; 301-First adjusting component; 302-First cutter; 303-Third cutter; 304-Second cutter; 305-Second adjusting component; 306-Ring frame; 4-First limiting frame; 5-Second limiting frame; 401-Wire receiving groove; 6-Peeling structure; 601-Peeling knife; 602-Fixing frame. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] The existing cable stripping methods mainly include manual stripping and general-purpose wire strippers or wire stripping machines.

[0027] Manual stripping is the most basic method of cable stripping. It involves using an electrician's knife or utility knife to cut the cable sheath or insulation layer by layer. The tools are simple and the cost is extremely low, but it relies heavily on the operator's experience and requires manual control of the cutting depth. Moreover, it is labor-intensive, especially for large-diameter cables with hard and thick protective layers, such as mining explosion-proof cables. It is time-consuming, labor-intensive, and the cutting consistency is poor.

[0028] Using common wire strippers or wire strippers offers a significant improvement in stripping efficiency compared to conventional methods. It involves clamping the cable or wire and achieving precise stripping by rotating or pulling. However, general-purpose wire strippers or strippers are only suitable for small- or medium-diameter cables with simple structures. For complex cables like mining explosion-proof cables with large diameters and stiff insulation, general-purpose wire strippers or strippers are largely unsuitable.

[0029] This utility model provides a stripping auxiliary device for mining explosion-proof cables. It is a stripping auxiliary device designed for mining explosion-proof cables and other cables with complex structures, large diameters, and hard protective layers. It helps to improve stripping efficiency and quality and can solve problems such as high labor intensity, easy damage to the internal cable insulation layer, and stripping safety issues.

[0030] Please combine Figure 1 and Figure 2 The cable includes a core and an outer sheath covering the core. This mining explosion-proof cable stripping auxiliary device includes a guide frame 2 and a cutting structure 3. The guide frame 2 supports and transports the cable. The cutting structure 3 is located on the output side of the guide frame 2 and includes a first cutter 302, a second cutter 304, and a third cutter 303. The first cutter 302 and the second cutter 304 are spaced apart circumferentially along the cable. The first cutter 302 and the second cutter 304 are used to cut the cable sheath axially, forming two axial cutting lines on the cable sheath. The third cutter 303 moves circumferentially along the cable to cut the cable sheath between the two cutting lines. In this way, the three cutters can create a U-shaped cutting line, thereby removing the sheath cut out by the U-shaped cutting line, forming a U-shaped notch on the cable sheath, which facilitates subsequent complete stripping, i.e., removing the cable sheath along a certain length to expose the outer circumference of the core.

[0031] Please combine Figure 3 and Figure 4 Optionally, the stripping auxiliary device for explosion-proof mining cables also includes a stripping structure 6. The stripping structure 6 is equipped with a stripping knife 601, located between the first cutter 302 and the second cutter 304, for separating the cable core and the cable sheath. When the first cutter 302 and the second cutter 304 form two axial cutting lines, the stripping knife 601 inserts between the cable sheath and the core, lifting the sheath between the two cutting lines, thus separating the sheath and the core.

[0032] Optionally, one side of the peeling blade 601 has a tapered surface for contacting the cable sheath near the core; the other side of the peeling blade 601 has an arc-shaped surface for contacting the cable core near the sheath. The arc-shaped surface conforms to the curvature of the outer circumference of the core, allowing the peeling blade 601 to use the outer circumference of the core as a guide to peel along the cable's axial direction, resulting in high peeling efficiency and minimizing damage to the internal core. The upper side of the peeling blade 601 is designed with a tapered surface, allowing it to conform closely to the cable sheath for easy cutting and separation without jamming, further increasing peeling efficiency.

[0033] Optionally, the peeling structure 6 includes a fixing frame 602 and a peeling blade 601. The peeling blade 601 is connected to the fixing frame 602, and the fixing frame 602 is connected to the cutting structure 3. It can be understood that the peeling blade 601 and the first cutter 302 or the second cutter 304 are spaced a certain distance apart axially, and located circumferentially between the first cutter 302 and the second cutter 304. In this way, after the first cutter 302 and the second cutter 304 first form two cutting lines of a certain length, the peeling blade 601 then peels the cable, resulting in higher peeling efficiency and smoother movement.

[0034] Optionally, the sheath-cutting structure 3 further includes a first adjusting member 301 connected to the first cutter 302 and a second adjusting member 305 connected to the second cutter 304. The first adjusting member 301 is used to adjust the extension amount of the first cutter 302, that is, to adjust the amount of the first cutter 302 cutting into the cable sheath (i.e., the cutting depth of the cable sheath). The second adjusting member 305 is used to adjust the extension amount of the second cutter 304, that is, to adjust the cutting depth of the cable sheath. In this embodiment, the first adjusting member 301 and the second adjusting member 305 are respectively adjusted screws. It can be understood that after adjusting the extension amount of the first cutter 302 and the second cutter 304, the positions of the first cutter 302 and the second cutter 304 are fixed and locked with adjusting screws respectively. When it is necessary to adjust the cutting depth or cut cables of different diameters, the adjusting screws can be loosened to adjust the extension amount of the first cutter 302 and the second cutter 304.

[0035] Optionally, the peeling structure 3 includes a ring frame 306, with a first cutter 302, a second cutter 304, and a third cutter 303 respectively disposed on the ring frame 306. The fixing frame 602 of the peeling structure 6 can be the ring frame 306 or other mounting carriers, which are not specifically limited here.

[0036] Optionally, a slider (not shown in the figure) is provided on the ring frame 306, and the third cutter 303 is threadedly connected to the slider; the slider can slide relative to the ring frame 306 in the circumferential direction. The threaded connection between the third cutter 303 and the slider allows for easy adjustment of the extension amount of the third cutter 303, thereby adjusting the cutting depth of the third cutter 303 on the cable sheath. The circumferential movement range of the third cutter 303 is set according to the circumferential interval between the first cutter 302 and the second cutter 304, ensuring that the third cutter 303 can cut from one cutting line formed by the first cutter 302 to another cutting line formed by the second cutter 304, thereby removing the sheath enclosed by the U-shaped cutting line and forming a notch on the cable sheath. The movement of the third cutter 303 can be manually operated by the user, or it can be electrically driven, hydraulically driven, or pneumatically driven, etc., without specific limitations.

[0037] Optionally, the mining explosion-proof cable stripping auxiliary device also includes a first limiting frame 4 and a second limiting frame 5. The first limiting frame 4 and the second limiting frame 5 are each provided with a cable receiving groove 401, which is arc-shaped and its curvature matches the curvature of the cable sheath. This effectively limits the cable and ensures accurate cable delivery. The first limiting frame 4 and the second limiting frame 5 are located on opposite sides of the sheathing structure 3; the first limiting frame 4 is situated between the guide frame 2 and the sheathing structure 3.

[0038] Optionally, the guide frame 2 is provided with a cable passage hole 201 and a guide wheel 202. The cable passage hole 201 is used for the cable to pass through, serving as a guide and limiting mechanism. The guide wheel 202 is connected to a driving component (not shown in the figure). The driving component drives the guide wheel 202 to rotate, and the guide wheel 202 is used to move the cable to the stripping structure 3. In this embodiment, two guide wheels 202 are provided. The cable passes between the two guide wheels 202. The two guide wheels 202 rotate and clamp the cable, and the cable moves through the friction between the guide wheels 202 and the cable. The driving component can be a motor, hydraulic motor, or pneumatic motor, etc., and is not specifically limited here. The two guide wheels 202 can effectively achieve vertical limiting, and the first limiting frame 4 and the second limiting frame 5 can effectively achieve horizontal limiting, thereby comprehensively ensuring the precise directional delivery of the cable and improving the stripping quality and accuracy.

[0039] Optionally, the mining explosion-proof cable stripping auxiliary device also includes a base 1, a cutting structure 3, a guide frame 2, a first limiting frame 4, a second limiting frame 5, and a stripping structure 6, all mounted on the base 1. The overall structure is relatively simple, low in cost, and practical and convenient.

[0040] The operating principle of the mining explosion-proof cable stripping auxiliary device provided in this embodiment is as follows: When the explosion-proof cable for mining needs to be stripped, the first adjusting component 301 and the second adjusting component 305 are adjusted according to the minimum thickness of the outer sheath of the explosion-proof cable, and the extension of the first cutting blade 302 and the second cutting blade 304 are adjusted accordingly. The cable passes through the cable hole 201 of the guide frame 2 and enters between the two guide wheels 202. The drive component drives the cable to move forward at a constant speed along the axial direction. After passing through the first limiting frame 4, it enters the stripping structure 3, where the first cutting blade 302 and the second cutting blade 304 draw two cutting lines along the axial direction. In this embodiment, the first cutting blade 302 and the second cutting blade 304 remain stationary, and the cable moves at a constant speed, thus forming two cutting lines. When the cable moves to the stripping structure 6, the stripping blade 601 separates the outer sheath and the core between the two cutting lines. After stripping, the cable enters the second limiting frame 5 to ensure accurate positioning during cable transportation.

[0041] After the cable sheath is cut to the required length, the drive unit stops, and the cable stops moving. Adjust the extension of the third cutter 303 with a wrench, and move the third cutter 303 circumferentially. Use the third cutter 303 to make a transverse cut at the final position of the peeled cable sheath, thus completing the peeling process. Remove the peeled cable, and peel off the remaining unpeeled cable sheath to complete the cable stripping.

[0042] The high labor intensity of stripping explosion-proof cables for mining stems from two main aspects: firstly, the cable sheath itself is hard and difficult to cut; secondly, once cut, it is difficult to peel off completely. This embodiment addresses this by designing an electrically driven cable delivery system to reduce labor intensity. The first limiting frame 4 and the second limiting frame 5 ensure directional cable delivery. The cutting structure 3 and the peeling structure 6 cut and separate the cable sheath, creating a stripping notch on the sheath, significantly reducing labor intensity and ensuring efficiency. Furthermore, this embodiment addresses the issue of easily damaging the cable's internal core by limiting the cable and adjusting the cutting depth of the cutter, thus ensuring stripping quality.

[0043] This mining explosion-proof cable stripping auxiliary device is not only suitable for mining explosion-proof cables, but also for other complex-structured, large-diameter, hard-sheathed cables, wires, optical cables, or other stripping scenarios. The number, shape, and distribution of the first cutter 302, the second cutter 304, the third cutter 303, and the peeling blade 601 can be flexibly adjusted according to actual needs, and no specific limitations are made here.

[0044] In summary, the beneficial effects of the mining explosion-proof cable stripping auxiliary device provided in this embodiment of the present invention include: The sheath-cutting structure 3 employs two axial cutting blades 302 and 304, and a transverse cutting blade 303, enabling biaxial axial cutting of the cable sheath, significantly reducing the difficulty of cutting the cable sheath. By using biaxial cutting, the sheath-peeling blade 601 can more efficiently cut into the middle section (between the two cutting lines) of the cable sheath during subsequent peeling, facilitating peeling by the sheath-peeling structure 6. The sheath-peeling structure 6, using an axial peeling method, is designed specifically for the characteristics of mining explosion-proof cables. Simultaneously, the sheath-peeling blade 601 features a tapered upper surface and a circular arc lower surface, allowing it to conform to the cable sheath for easy cutting and separation without jamming, resulting in higher peeling efficiency. The combined peeling method of the sheath-cutting structure 3 and the sheath-peeling structure 6 efficiently peels away the hard outer sheath of the cable, greatly reducing the labor required to peel the remaining portion of the cable, improving peeling efficiency, and effectively solving the problem of high labor intensity in peeling the outer sheath of large-diameter mining explosion-proof cables.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of this utility model.

Claims

1. A stripping auxiliary device for explosion-proof cables used in mining, characterized in that, include: Guide frame (2), the guide frame (2) is used to support and transport cables; The skin-cutting structure (3) is located on the output side of the guide frame (2); the skin-cutting structure (3) is provided with a first cutter (302), a second cutter (304) and a third cutter (303). The first cutter (302) and the second cutter (304) are spaced apart along the circumference of the cable; the first cutter (302) and the second cutter (304) are used to cut the outer sheath of the cable along the axial direction of the cable to form two axial cutting lines on the outer sheath of the cable; the third cutter (303) is used to move along the circumference of the cable to cut the outer sheath of the cable between the two cutting lines.

2. The stripping auxiliary device for explosion-proof cables in mining according to claim 1, characterized in that, It also includes a peeling structure (6), which is provided with a peeling knife (601) located between the first cutter (302) and the second cutter (304) for separating the core of the cable from the outer sheath of the cable.

3. The stripping auxiliary device for explosion-proof cables in mining according to claim 2, characterized in that, One side of the peeling knife (601) has a tapered surface for contacting the outer sheath of the cable near the core; the other side of the peeling knife (601) has an arc-shaped surface for contacting the core of the cable near the outer sheath.

4. The stripping auxiliary device for explosion-proof cables in mining according to claim 2, characterized in that, The peeling structure (6) includes a fixing frame (602) and a peeling knife (601), the peeling knife (601) being connected to the fixing frame (602), and the fixing frame (602) being connected to the cutting structure (3).

5. The stripping auxiliary device for explosion-proof cables in mining according to claim 1, characterized in that, The skin-cutting structure (3) further includes a first adjusting member (301) connected to the first cutter (302) and a second adjusting member (305) connected to the second cutter (304).

6. The stripping auxiliary device for explosion-proof cables in mining according to claim 1, characterized in that, The skin-cutting structure (3) includes a ring frame (306), and the first cutter (302), the second cutter (304) and the third cutter (303) are respectively disposed on the ring frame (306).

7. The stripping auxiliary device for explosion-proof cables in mining according to claim 6, characterized in that, The ring frame (306) is provided with a slider, and the third cutter (303) is threadedly connected to the slider; the slider can slide relative to the ring frame (306) in the circumferential direction.

8. The stripping auxiliary device for explosion-proof cables in mining according to claim 1, characterized in that, It also includes a first limiting frame (4) and a second limiting frame (5), the first limiting frame (4) and the second limiting frame (5) are respectively provided with a wire groove (401), the first limiting frame (4) and the second limiting frame (5) are respectively located on both sides of the cutting structure (3); wherein, the first limiting frame (4) is located between the guide frame (2) and the cutting structure (3).

9. The stripping auxiliary device for explosion-proof cables in mining according to claim 1, characterized in that, The guide frame (2) is provided with a cable passage hole (201) and a guide wheel (202). The cable passage hole (201) is used for the cable to pass through, and the guide wheel (202) is connected to a driving member. The guide wheel (202) is used to drive the cable to move to the sheathing structure (3).

10. The stripping auxiliary device for explosion-proof cables in mining according to any one of claims 1 to 9, characterized in that, It also includes a base (1), on which the skin-cutting structure (3) and the guide frame (2) are mounted.

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